Harmonic Separators

YHS

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YHS

Harmonic separators are designed to separate specific YAG harmonics from other harmonics. We offer three standard wavelength (1064nm, 532nm, 355nm) reflectance YAG harmonics.

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Name Design wavelength Diameter φD Laser Damage Threshold Delivery Price Add to cart

Harmonic Separator 25.4mm Diameter Wavelength 355nm
YHS-25.4C05-355

355nm

25.4mm

5J/cm²

1 week

£274.40

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ25.4mm
Thickness t	5mm
Reflectance (Average P and S polarized light)	＞99.5% at 355nm
Transmittance (Average P and S polarized light)	＞85% at 532・1064nm
Laser Damage Threshold <sup>*</sup>	5J/cm²
Availability	From stock

Harmonic Separator 25.4mm Diameter Wavelength 532nm
YHS-25.4C05-532

532nm

25.4mm

8J/cm²

1 week

£182.90

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ25.4mm
Thickness t	5mm
Reflectance (Average P and S polarized light)	＞99.5% at 532nm
Transmittance (Average P and S polarized light)	＞95% at 1064nm
Laser Damage Threshold <sup>*</sup>	8J/cm²
Availability	From stock

Harmonic Separator 25.4mm Diameter Wavelength 1064nm
YHS-25.4C05-1064

1064nm

25.4mm

20J/cm²

6-12 weeks

£228.60

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ25.4mm
Thickness t	5mm
Reflectance (Average P and S polarized light)	＞99.5% at 1064nm
Transmittance (Average P and S polarized light)	＞90% at 532nm
Laser Damage Threshold <sup>*</sup>	20J/cm²
Availability	From stock

Harmonic Separator 30mm Diameter Wavelength 355nm
YHS-30C05-355

355nm

30mm

5J/cm²

1 week

£312.80

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ30mm
Thickness t	5mm
Reflectance (Average P and S polarized light)	＞99.5% at 355nm
Transmittance (Average P and S polarized light)	＞85% at 532・1064nm
Laser Damage Threshold <sup>*</sup>	5J/cm²
Availability	From stock

Harmonic Separator 30mm Diameter Wavelength 532nm
YHS-30C05-532

532nm

30mm

8J/cm²

6-12 weeks

£208.50

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ30mm
Thickness t	5mm
Reflectance (Average P and S polarized light)	＞99.5% at 532nm
Transmittance (Average P and S polarized light)	＞95% at 1064nm
Laser Damage Threshold <sup>*</sup>	8J/cm²
Availability	From stock

Harmonic Separator 30mm Diameter Wavelength 1064nm
YHS-30C05-1064

1064nm

30mm

20J/cm²

6-12 weeks

£252.00

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ30mm
Thickness t	5mm
Reflectance (Average P and S polarized light)	＞99.5% at 1064nm
Transmittance (Average P and S polarized light)	＞90% at 532nm
Laser Damage Threshold <sup>*</sup>	20J/cm²
Availability	From stock

Harmonic Separator 50mm Diameter Wavelength 355nm
YHS-50C08-355

355nm

50mm

5J/cm²

1 week

£477.80

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ50mm
Thickness t	8mm
Reflectance (Average P and S polarized light)	＞99.5% at 355nm
Transmittance (Average P and S polarized light)	＞85% at 532・1064nm
Laser Damage Threshold <sup>*</sup>	5J/cm²
Availability	Please contact

Harmonic Separator 50mm Diameter Wavelength 532nm
YHS-50C08-532

532nm

50mm

8J/cm²

6-12 weeks

£330.20

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ50mm
Thickness t	8mm
Reflectance (Average P and S polarized light)	＞99.5% at 532nm
Transmittance (Average P and S polarized light)	＞95% at 1064nm
Laser Damage Threshold <sup>*</sup>	8J/cm²
Availability	From stock

Harmonic Separator 50mm Diameter Wavelength 1064nm
YHS-50C08-1064

1064nm

50mm

20J/cm²

6-12 weeks

£391.00

Material	YHS:BK7, YHSQ:Synthetic fused silica
Surface flatness	λ/10
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Parallelism	＜5″
Surface Quality <br> (Scratch-Dig)	10−5
Diameter φD	φ50mm
Thickness t	8mm
Reflectance (Average P and S polarized light)	＞99.5% at 1064nm
Transmittance (Average P and S polarized light)	＞90% at 532nm
Laser Damage Threshold <sup>*</sup>	20J/cm²
Availability	From stock

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◦These mirrors are coated with multi-layered dielectric with different refractive index, using BK7 optical parallels with λ/10 surface flatness and parallelism of 5 arc second. The other surface is coated with multi-layer anti-reflection.
◦These mirrors are used at 45° incident angle to reflect specific wavelength beam and transmits other YAG wavelengths.
◦For plate type, you can use a large laser beam diameter.